Apply 4253 update

engine/common/mathlib.c

@@ -135,6 +135,7 @@ void RoundUpHullSize( vec3_t size )
 		value = size[i];
 		if( value < 0.0f ) negative = true;
 		value = Q_ceil( fabs( value ));
+		result = Q_ceil( size[i] );
 
 		// lookup hull table to find nearest supposed value
 		for( j = 0; j < NUM_HULL_ROUNDS; j++ )
@@ -321,6 +322,25 @@ void SinCos( float radians, float *sine, float *cosine )
 	}
 }
 
+/*
+==============
+VectorCompareEpsilon
+
+==============
+*/
+qboolean VectorCompareEpsilon( const vec3_t vec1, const vec3_t vec2, vec_t epsilon )
+{
+	vec_t	ax, ay, az;
+
+	ax = fabs( vec1[0] - vec2[0] );
+	ay = fabs( vec1[1] - vec2[1] );
+	az = fabs( vec1[2] - vec2[2] );
+
+	if(( ax <= epsilon ) && ( ay <= epsilon ) && ( az <= epsilon ))
+		return true;
+	return false;
+}
+
 float VectorNormalizeLength2( const vec3_t v, vec3_t out )
 {
 	float	length, ilength;